about chapter 13

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Hydrolyzing metal nitrides like magnesium and aluminium nitrides, with water or alkalies, can also produce ammonia gas. ..

Temperature:1600 o C. The partly fused and sintered mixture undergoes a series of chemical reactions to form calcium aluminates and silicates. All these reactions are exothermic releasing heat. Proper temperature control is a must to avoid excessive vitrification (conversion into a glass..

During the chemical reactions of metals HNO 3 not only acts as acid but also an oxidizing agent. The various stages of reduction of nitric acid are: Thus product of reaction consists of metal nitrates, water and reduction product of HNO 3 . The nature of the metal as well as the concentration o..

Formation of ammonium bicarbonate (NH 4 HCO 3 ). Carbon dioxide is passed through a solution of ammonia. Formation of sodium bicarbonate, NaHCO 3 , is observed when ammonium bicarbonate reacts with sodium chloride. Sodium carbonate can be obtained by heating the bicarbonate obtained in..

Sodium bicarbonate is sparingly soluble in water. Its solution is mildly alkaline. This is because of hydrolysis, as shown below: (Hydrolysis - breakdown due to water) Sodium bicarbonate decomposes to sodium carbonate on heating. ..

Ozone is formed in the upper atmosphere in two steps: i) Photodissociation of oxygen by ultraviolet radiations of wavelength less than 240 nm. ii) Combination of highly reactive oxygen atoms with oxygen molecules. 12. What is the principle of preparation of ozo..

Tangents and Normals..